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I see many websites offering services to list recently expired domains. I also see many blogs on how to use these websites.

However, none of them explain what is necessary to generate the list in a computerized manner. Is it possible to do this without saving all the domain names and querying the whois to see if the registration is gone?

Unknown
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  • See [this answer](http://stackoverflow.com/questions/307553/possible-to-download-entire-whois-database-list-of-registered-domains/307590#307590). – Alix Axel Feb 10 '11 at 00:33
  • [Domain squatting](https://en.wikipedia.org/wiki/Cybersquatting) and [Domain speculation](https://en.wikipedia.org/wiki/Domain_name_speculation). Bzip recently lost their domain to a squatter. Also see [Off-topic: what happended to bzip.org?](https://sourceforge.net/p/valgrind/mailman/message/36403427/) on the Valgrind mailing list. – jww Sep 01 '18 at 15:46

2 Answers2

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WhoisFreaks provides a systematic, well parsed, and normalized expiring domains Whois file in CSV format. You just have to download the file and can get all the domains that are expiring in the same column. No need to re-arrange the domains. You can download the expiring domains and their Whois information for those domains that are expiring 1 month after and 1 month before the current date.

There are three ways to get WhoisFreaks expiring domains file.

  • You can download it directly from the billing dashboard manually.
  • The latest generated file will be e-mailed to you.
  • You can also get it thru an API endpoint.

You can see WhoisFreaks expiring domains whois sample file here.

Rameez
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Well, you wouldnt check every domain against whois every day. Instead, you would keep track of the expiration date of each domain from whois, and only check the domains that have expired to see if they have been renewed or not.

Peter Lange
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